@misc{indiciae0fd5a1a8196b,
  title = {Practical silo construction; a treatise illustrating and explaining the most simple and easiest practical methods of constructing concrete silos of all types; with unpatented forms and molds ... — Illustration, Page 21},
  year = {1911},
  url = {https://www.biodiversitylibrary.org/page/21225241},
  note = {Source identifier: page-21225241}
}